sedimentary

Sandstone (likely Siltstone or Mudstone)

Clastic sedimentary rock (primarily SiO2 with various oxides)

AI-generated identification · may be incorrect

Hardness: 6-7 on Mohs scale; Color: Tan, brown, or earthy yellow; Luster: Dull/Earthy; Crystal structure: Granular/Fine-grained; Cleavage: None, often breaks along bedding planes.

Hardness: 6-7 on Mohs scale
Color: Tan, brown, or earthy yellow
Luster: Dull/Earthy

Identified July 1, 2026More sedimentary →

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Physical properties

Hardness: 6-7 on Mohs scale; Color: Tan, brown, or earthy yellow; Luster: Dull/Earthy; Crystal structure: Granular/Fine-grained; Cleavage: None, often breaks along bedding planes.

Formation & geological history

Formed through the accumulation and cementation of mineral particles or rock fragments (clasts) in environments like riverbeds, deltas, or desert basins over millions of years.

Uses & applications

Commonly used in construction for paving, building facades, and as an aggregate in landscaping and industrial sand applications.

Geological facts

Sandstone records historical environmental changes; the iron oxides within it often give it its characteristic red, orange, or yellow hues.

Field identification & locations

Identify in the field by its gritty texture (feels like sandpaper) and visible layers or bedding. Commonly found in canyons, quarries, and coastal outcrops.